Organ is the most unique of all the free portfolio themes available for Tumblr. This CSS theme gives photographers the chance to display their work in a creative and interactive way.

The front page features crops of the latest photographs.

Hovering over any given image will display the entire photo.

Opening up an individual post will display the picture along with it tags, how long ago it was posted, and its caption.

Organ also allows you to easily navigate from one photo to the next.

The Organ Tumblr theme can be customized with a background image of your choice, and you can also choose to show a variety of information such as the note count, copyright, and links to the archive and random posts.

HasAPortfolio is not featured in the official Tumblr themes so installing it is not as simple as just clicking a button. But that isn’t to say it’s just as easy to install.

Download either the simple version or rounded version of the theme, and copy the text. Going into your Tumblr dashboard, select Customize, Theme, Use Custom HTML, and paste the text from the file into the window. You can preview the theme, and then save changes.

HasAPortfolio frames your photos in the spirit of the Polaroid, and the front page features a grid of your latest work.

The header includes the blog title and whatever text you choose to include in your ‘About‘ section.

Individual images are displayed using a lightbox feature, overlaying the rest of the posts on that page.

All the background and text colours used on HasAPortfolio can be customized.

Photoboard is another grid portfolio theme. The default background looks like a corkboard, and images appear in a large beige frame.

Clicking on the information button for any given image will flip the photo, displaying its tags, its post date, and how many notes the image has. Individual posts are accompanied by the same information, in addition to the detailed feedback the image has received.

The text and background colours can be customised, and you can also upload a background image of your choice. Other features can be toggled on and off including the flip photo feature.

If you’re not a fan of the minimalist themes, then Franklin Street contains a few more features that might be appealing.

The front page features a grid of the most recent posts accompanied by their captions.

Individual images can displayed using a lightbox feature, overlaying the rest of the posts on that page, or by clicking on the permalink displaying the image alone along with its post date, caption and feedback it has received.

The header includes the blog title, about text and buttons to access the archive and RSS feed.

If you would prefer a dark list-like theme, Photog features the latest photos as a list, but with a large gap between each image, which can be altered to your liking.

Individual posts are not accompanied by any additional information.

The footer features the blog title, about text, and links to the RSS feed, archives and a search button. The blog can be further customised, choosing the fonts used, and it also features easy Disqus integration.

Nancy is a writer and editor living in Washington DC. She was previously the Middle East editor at The Next Web and currently works at a DC-based think tank on communications and social media outreach.